/Engine/Source/Editor/Kismet/Public/FindInBlueprintManager.h
Callback to note that Blueprint caching is complete
void FinishedCachingBlueprints ( EFiBCacheOpType InCacheOpType, EFiBCacheOpFlags InCacheOpFlags, int32 InNumberCached, [TSet](API\Runtime\Core\Containers\TSet)< [FSoftObjectPath](API\Runtime\CoreUObject\UObject\FSoftObjectPath) > & InFailedToCacheList )